20260628 has 12 divisors (see below), whose sum is σ = 36125460. Its totient is φ = 9939072.

The previous prime is 20260627. The next prime is 20260637. The reversal of 20260628 is 82606202.

It can be written as a sum of positive squares in 2 ways, for example, as 5299204 + 14961424 = 2302^2 + 3868^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20260597 and 20260606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20260621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47573 + ... + 47996.

It is an arithmetic number, because the mean of its divisors is an integer number (3010455).

Almost surely, 2^20260628 is an apocalyptic number.

It is an amenable number.

20260628 is a deficient number, since it is larger than the sum of its proper divisors (15864832).

20260628 is a wasteful number, since it uses less digits than its factorization.

20260628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95626 (or 95624 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 20260628 is about 4501.1807339853. The cubic root of 20260628 is about 272.6157654187.

The spelling of 20260628 in words is "twenty million, two hundred sixty thousand, six hundred twenty-eight".